CEF4Delphi/source/uCEFNavigationEntryVisitor.pas
2018-05-12 14:50:54 +02:00

133 lines
4.5 KiB
ObjectPascal

// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 to embed a chromium-based
// browser in Delphi applications.
//
// The original license of DCEF3 still applies to CEF4Delphi.
//
// For more information about CEF4Delphi visit :
// https://www.briskbard.com/index.php?lang=en&pageid=cef
//
// Copyright © 2018 Salvador Diaz Fau. All rights reserved.
//
// ************************************************************************
// ************ vvvv Original license and comments below vvvv *************
// ************************************************************************
(*
* Delphi Chromium Embedded 3
*
* Usage allowed under the restrictions of the Lesser GNU General Public License
* or alternatively the restrictions of the Mozilla Public License 1.1
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* Unit owner : Henri Gourvest <hgourvest@gmail.com>
* Web site : http://www.progdigy.com
* Repository : http://code.google.com/p/delphichromiumembedded/
* Group : http://groups.google.com/group/delphichromiumembedded
*
* Embarcadero Technologies, Inc is not permitted to use or redistribute
* this source code without explicit permission.
*
*)
unit uCEFNavigationEntryVisitor;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}
{$ALIGN ON}
{$MINENUMSIZE 4}
{$ENDIF}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces;
type
TCefNavigationEntryVisitorOwn = class(TCefBaseRefCountedOwn, ICefNavigationEntryVisitor)
protected
function Visit(const entry: ICefNavigationEntry; current: Boolean; index, total: Integer): Boolean; virtual;
public
constructor Create;
end;
TCefFastNavigationEntryVisitor = class(TCefNavigationEntryVisitorOwn)
protected
FVisitor: TCefNavigationEntryVisitorProc;
function Visit(const entry: ICefNavigationEntry; current: Boolean; index, total: Integer): Boolean; override;
public
constructor Create(const proc: TCefNavigationEntryVisitorProc); reintroduce;
end;
implementation
uses
uCEFTypes, uCEFMiscFunctions, uCEFNavigationEntry;
function cef_navigation_entry_visitor_visit(self : PCefNavigationEntryVisitor;
entry : PCefNavigationEntry;
current : Integer;
index : Integer;
total : Integer): Integer; stdcall;
var
TempObject : TObject;
begin
Result := Ord(False);
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCefNavigationEntryVisitorOwn) then
Result := Ord(TCefNavigationEntryVisitorOwn(TempObject).Visit(TCefNavigationEntryRef.UnWrap(entry),
current <> 0,
index,
total));
end;
// TCefNavigationEntryVisitorOwn
constructor TCefNavigationEntryVisitorOwn.Create;
begin
inherited CreateData(SizeOf(TCefNavigationEntryVisitor));
PCefNavigationEntryVisitor(FData)^.visit := {$IFDEF FPC}@{$ENDIF}cef_navigation_entry_visitor_visit;
end;
function TCefNavigationEntryVisitorOwn.Visit(const entry : ICefNavigationEntry;
current : Boolean;
index : Integer;
total : Integer): Boolean;
begin
Result:= False;
end;
// TCefFastNavigationEntryVisitor
constructor TCefFastNavigationEntryVisitor.Create(const proc: TCefNavigationEntryVisitorProc);
begin
FVisitor := proc;
inherited Create;
end;
function TCefFastNavigationEntryVisitor.Visit(const entry : ICefNavigationEntry;
current : Boolean;
index : Integer;
total : Integer): Boolean;
begin
Result := FVisitor(entry, current, index, total);
end;
end.